Results 51 to 60 of about 281,835 (164)

Measures of clade confidence do not correlate with accuracy of phylogenetic trees. [PDF]

open access: yesPLoS Computational Biology, 2007
Metrics of phylogenetic tree reliability, such as parametric bootstrap percentages or Bayesian posterior probabilities, represent internal measures of the topological reproducibility of a phylogenetic tree, while the recently introduced aLRT (approximate
Barry G Hall, Stephen J Salipante
doaj   +1 more source

The enigmatic monotypic crab plover Dromas ardeola is closely related to pratincoles and coursers (Aves, Charadriiformes, Glareolidae)

open access: yesGenetics and Molecular Biology, 2010
The phylogenetic placement of the monotypic crab plover Dromas ardeola (Aves, Charadriiformes) remains controversial. Phylogenetic analysis of anatomical and behavioral traits using phenetic and cladistic methods of tree inference have resulted in ...
Sergio L. Pereira, Allan J. Baker
doaj   +1 more source

Comparison of Phylogenetic Tree Topologies for Nitrogen Associated Genes Partially Reconstruct the Evolutionary History of Saccharomyces cerevisiae

open access: yesMicroorganisms, 2019
Massive sequencing projects executed in Saccharomyces cerevisiae have revealed in detail its population structure. The recent “1002 yeast genomes project” has become the most complete catalogue of yeast genetic diversity and a powerful ...
Manuel Villalobos-Cid   +6 more
doaj   +1 more source

A vector representation for phylogenetic trees

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences
Good representations for phylogenetic trees and networks are important for enhancing storage efficiency and scalability for the inference and analysis of evolutionary trees for genes, genomes and species. We propose a new representation for rooted phylogenetic trees that encodes a tree on
Cedric Chauve   +2 more
openaire   +3 more sources

Visualizations for taxonomic and phylogenetic trees [PDF]

open access: yesBioinformatics, 2004
Abstract Motivation: Despite substantial efforts to develop and populate the back-ends of biological databases, front-ends to these systems often rely on taxonomic expertise. This research applies techniques from human–computer interaction research to the biodiversity domain.
Cynthia Sims Parr   +3 more
openaire   +2 more sources

A novel approach to phylogenetic tree construction using stochastic optimization and clustering

open access: yesBMC Bioinformatics, 2006
Background The problem of inferring the evolutionary history and constructing the phylogenetic tree with high performance has become one of the major problems in computational biology.
Pan Yi, Chen Yixin, Qin Ling, Chen Ling
doaj   +1 more source

Graph-based method for constructing consensus trees [PDF]

open access: yesBIO Web of Conferences
A consensus tree is a phylogenetic tree that synthesizes a given collection of phylogenetic trees, all of which share the same leaf labels but may have different topologies, typically obtained through bootstrapping.
Torquet Elio   +2 more
doaj   +1 more source

Stability analysis of phylogenetic trees [PDF]

open access: yesBioinformatics, 2012
Abstract Motivation: Phylogenetics, or reconstructing the evolutionary relationships of organisms, is critical for understanding evolution. A large number of heuristic algorithms for phylogenetics have been developed, some of which enable estimates of trees with tens of thousands of taxa. Such trees may not be robust, as small changes in
Saad I. Sheikh   +3 more
openaire   +2 more sources

Spatial Phylogenetics of Florida Vascular Plants: The Effects of Calibration and Uncertainty on Diversity Estimates

open access: yesiScience, 2019
Summary: Recent availability of biodiversity data resources has enabled an unprecedented ability to estimate phylogenetically based biodiversity metrics over broad scales.
Julie M. Allen   +13 more
doaj   +1 more source

Mean and Variance of Phylogenetic Trees [PDF]

open access: yesSystematic Biology, 2019
Abstract We describe the use of the Fréchet mean and variance in the Billera–Holmes–Vogtmann (BHV) treespace to summarize and explore the diversity of a set of phylogenetic trees. We show that the Fréchet mean is comparable to other summary methods, and, despite its stickiness property, is more likely to be binary than the majority-rule ...
Brown, Daniel G., Owen, Megan
openaire   +3 more sources

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